PHYSICS 3B Chapter Notes - Chapter 20: Isothermal Process, Carnot Heat Engine, Internal Combustion Engine
Document Summary
Oh - 20 : the second law of thermodynamics. A couple ways to state it : Heat can tow spontaneously from not to cold z . There can be no 1001 . efficient heat engine: processes in nature mover systems from a state of order to disorder (greater entropy ) " heat engine = any device that changes thermal energy into mechanical work. " qu - input at high temperature input at only when heat can now from night low low temperature iii. Oeiht = qu - w - qu = o (cid:8869) recall : eiht - Cycle : when a system involving an ideal gas changes state (pn. Mer exact same initial conditions: via a set of processes and comes back to n , High - temp . resent or at th transfers amount qu. Rest at ql is exhausted to lower- temp .
